Kwikset Aura Iron Black Metal Bluetooth Keypad Entry Smart LockAura Bluetooth Smart Lock is a keyless entry electronic deadbolt featuring SmartKey. Using the Kwikset App within Bluetooth range, you can lock unlock the Aura Smart Lock and program up to 250 user access codes that can be scheduled and customized. This single cylinder deadbolt can be locked or unlocked by using the keypad or key from the outside as well as the turn button from the inside. The rich tones of Matte Black add the finishing touch to this